Why is Daredevil 2015 so brutal?Not sure what HBO has to do with this (?) but I work for one of NetFlix's competitors and speak with their staff surprisingly frequently and heard it from their mouths that they consciously wanted to make an adult-oriented superhero show.

How were the scenes with Gazelle shot?You're exactly right - they used green stockings with reflective dots to allow for post dimensioning to help with the animation plus also used computer controller cameras so that they could get a matching 'background-only' plate as the metal lets were inherently thinner than the actresses.